Question
2 chikoos and 3 mangosteens cost $7.80 altogether. 4 chikoos and 4 mangosteens cost $12.80 altogether. How much do 9 chikoos cost? Give the answer to 2 decimal place.
4 m

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2 chikoos and 3 mangosteens cost $7.80 altogether. 4 chikoos and 4 mangosteens cost $12.80 altogether. How much do 9 chikoos cost? Give the answer to 2 decimal place.